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a 120kg ball moving at 18m/s strikes a wall perpendicularly and rebounds straight back at 12m/s. after the initial contact, the centre of the ball moves 0.27cm closer to the wall. Assuming uniform deceleration, show that the time of the contact is 0.00075...

limit as delta x approaches 0 when f(x) = 4/ sqr x Have to use the (F(x+delta x)-f(x))/delta x method

Determine the mass(w/w%) percent of CaCl2 given the following information. The vapor pressure of a CaCl2 solution is 81.6 mmHg at 50degrees C. The vapor pressure of pure water at this temp is 92.6mmHg. Assume that you have 1.00mol of water.[Raoult's Law:...

A curve has equation y = 10 + 8x + x^2 - x^3. X >= 0 a)Find the coordinates of the turning point. and show whether it is maximum or minimum. b) Hence, Find the area of the region bounded by the curve, the line y = 11x and the y axis? I manage to complete...

How do I sketch a curve with equation y = x(x-2)^2 ?

How do I prove that 7sin^2x - sinxcosx = 6 can also be written as tan^2x + tanx - 6 = 0 ?

Read the following sentences from "Marriage is a Private Affair." ""I owe it to you, my son, as a duty to show what is right and what is wrong. Whoever put this idea into your head might as well have cut your throat. It is Satan's work." He waved his son...

Imagine that you have been asked to prepare 500mL of a 0.25 mol/L solution of sodium hydroxide, NaOH. a. Make a list of all of the materials and equipment you will require. b. Describe how you will prepare this solution. Include any calculations that you...

write each ratio in three different ways 11 out of 32 students have blue eyes

3(x+7)-2 3x+21 -2 3x +19

I gave up.

thanks